The purpose of propaganda is not to provide interesting distraction for blasé young gentlemen, but to convince... the masses. But the masses are slow moving, and they always require a certain time before they are ready even to notice a thing, and only after the simplest ideas are repeated thousands of times will the masses finally remember them.
For I must not measure the speech of a statesman to his people by the impression which it leaves in a university professor, but by the effect it exerts on the people. And this alone gives the standard for the speaker's genius.